Atu4866 is a protein with unknown function from Agrobacterium tumefaciens however the structure has been determined. Atu4866 adopts a streptavidin-like fold and has a beta-barrel/sandwich which is formed by eight antiparallel beta-strands [1]. Atu4866 has a potential ligand-binding site where is has a stretch of conserved residues on the surface [1].

1: The hypothetical protein Atu4866 from Agrobacterium tumefaciens adopts a streptavidin-like fold. Ai X, Semesi A, Yee A, Arrowsmith CH, Choy WY, Li SS; Protein Sci. 2008;17:154-158. PMID:18042676